External Models – Roanoke, VA

Making use of the AirSage mobile phone data, Ms. Harper assisted WSP/Parsons Brinckerhoff to develop and validate the internal-external and the through trip tables for Roanoke Valley Transportation Planning Organization’s (RVTPO) new regional model. A method for extracting trips relevant to the RVTPO region from the larger Virginia statewide AirSage data was developed, and EE/IEEI trips were validated against external counts. Trips were disaggregated from the statewide zones to the local region’s TAZ system and distributed based on socio-economic data. Commercial vehicle trips were similarly generated and distributed. CUBE scripts were developed to implement the newly developed models.